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Caching & Load Handling

- Have you implemented caching in Spring Boot?

- How does caching help in handling load and improving performance?

Caching & Load Handling

1: Have you implemented caching in Spring Boot?

Yes, I have implemented caching in Spring Boot using the @Cacheable annotation. This allows methods to store their results in a cache so that repeated calls with the same parameters return the cached value instead of executing the method again.

Example:

@Cacheable("products")
public Product getProductById(Long id) {
    // Fetch product from database
    return productRepository.findById(id);
}

In this example, when getProductById is called with the same id, the result is retrieved from the cache instead of querying the database again.

2. How does caching help in handling load and improving performance?

Caching helps by:

- Reducing database calls: Frequently accessed data is served from the cache, not the database, which lowers the load on the database.

- Faster response times: Data is returned quickly from the cache, improving user experience.

- Handling high traffic: When many users request the same data, caching prevents repeated expensive operations, allowing the application to handle more requests efficiently.

Example:

If 100 users request the same product details, without caching, the database will be hit 100 times. With caching, only the first request fetches from the database; the next 99 get the data from the cache.

Summary:

Caching in Spring Boot is easy to implement and helps your application handle more users, respond faster, and reduce the strain on your database.